The Multiquip 1604052112 Injection Pump Shim is a genuine OEM component designed for the DLW400ES series diesel light welder. Sourced directly from Multiquip, this shim ensures the fuel injection pump is positioned to the exact tolerances required for proper fuel delivery and engine performance. Confirmed fitment covers DLW400ES, DLW400ESA, and DLW400ESA1 models, making it a straightforward, confidence-inspiring replacement when servicing the injection system on these units.
Key Features
- Genuine OEM Tolerancing — Manufactured to Multiquip's original specifications, ensuring the shim delivers the precise axial positioning the injection pump requires for accurate fuel metering.
- Drop-In Injection Pump Fitment — Engineered to seat correctly within the injection pump mounting stack on DLW400ES, DLW400ESA, and DLW400ESA1 welders, with no machining or shimming adjustments needed beyond the part itself.
- Confirmed Model Compatibility — Verified fit for the DLW400ES series diesel light welders, so you can order with confidence knowing this is the correct OEM shim for your machine.
- Protects Injection Pump Longevity — A correctly shimmed injection pump maintains consistent fuel injection timing and pressure; an incorrect or worn shim leads to poor combustion, power loss, and accelerated pump wear.
- Fuel System Integrity — Proper shim thickness is critical to maintaining injection timing within spec — using the correct OEM part helps prevent timing drift that can affect both output performance and emissions compliance on diesel-powered equipment.
An injection pump shim is a precision spacer used to set the correct mounting depth and alignment of the fuel injection pump within the engine. On diesel engines like those found in the DLW400ES welder series, even a small deviation in pump positioning affects injection timing, which directly influences fuel combustion efficiency, power output, and engine smoothness. A missing, worn, or incorrectly sized shim can cause hard starting, rough running, or long-term damage to the injection pump and surrounding components.
For questions about fitment or to confirm this is the right part for your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 1604052112 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Injection Pump Shim |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
